Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:27:18 2012

Optimize a model with 55187 rows, 48180 columns and 212647 nonzeros
Presolve removed 460 rows and 4382 columns
Presolve time: 1.41s
Presolved: 54727 rows, 43798 columns, 206672 nonzeros
Variable types: 0 continuous, 43798 integer (43798 binary)
Found heuristic solution: objective 219.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34390    3.0000857e+00   4.182222e+02   0.000000e+00      5s
   38878    3.0000917e+00   7.002373e+02   0.000000e+00     10s
   42822    3.0000952e+00   3.241564e+01   0.000000e+00     15s
   46358    3.0000980e+00   4.553324e+01   0.000000e+00     20s
   49894    3.0000992e+00   1.675909e+01   0.000000e+00     25s
   51944    3.0000000e+00   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 3.000000e+00, 51944 iterations, 28.02 seconds
Total elapsed time = 63.16s
Total elapsed time = 68.97s

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0       3.0000000    3.00000   0.0%     -   69s

Explored 0 nodes (114315 simplex iterations) in 69.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%